Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-04-07 21:03, hash: rBb7b1b2325c1a
Worked: -
Short description of error
Spreadsheet editor showing instance columns even though there is no instance element.
Exact steps for others to reproduce the error
Sample file:
Note, a similar thing happens to the vertex groups. And I think it is fine for vertex groups:

